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Avalanche Forecast

Archived

Dec 9th, 2025–Dec 10th, 2025

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Coquihalla, Harrison-Fraser, Manning, Skagit.

Another warm storm with heavy rain is approaching.
Saturated snowpack will likely lead to wet avalanche activity on steep slopes.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported, but observations are very limited in this region.

If you're heading out into the backcountry, please consider sharing your observations on the MIN.

Snowpack Summary

Up to 10 cm of new snow can be found at upper elevations, which was redistributed by strong southerly winds into greater accumulations on lee slopes. This builds upon previous storm slabs, which currently overlie older layers and a thick melt-freeze crust down 50 to 60 cm.

At treeline, a crust is supportive to skis with moist/wet snow underneath. The new snow seems to be bonding well to the surface crust. At lower elevations, the crust is variably breakable.

Total snowpack depths range from around 80 to 150 cm deep at treeline, and diminish rapidly at lower elevations.

Weather Summary

Tuesday Night
Cloudy. Rain expected early evening. 70 km/h southwest ridgetop wind. Treeline temperature +4 °C. Freezing level rising to 2500 m at night.

Wednesday
Cloudy. 50 to 80 mm of rain. 60 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 2200 m.

Thursday
Mostly cloudy. 40 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1800 m.

Friday

Cloudy. 10 to 20 mm of precipitation as snow or rain. 60 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche danger is expected to increase throughout the day.
  • Keep in mind that the high density of wet avalanches can make them destructive.
  • Be alert to conditions that change with aspect and elevation.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.